我有一个带有水桶和零件的树视图。除了一个功能外,一切看起来都很棒存储桶上的属性(bool IsEditable)允许用户在该节点的树视图中打开或关闭编辑。但由于某种原因,当wpf在树视图中显示桶的集合时,togglebuttons不会显示正确的文本 这是我的xaml:
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Content">
<Setter.Value>
<TextBlock Text="Edit"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Content">
<Setter.Value>
<TextBlock Text="Done"/>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
<DataTemplate x:Key="HierarchialItemTemplate">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding BucketQty, UpdateSourceTrigger=PropertyChanged}"/>
<TextBlock Text=" "/>
<TextBlock Text="{Binding PartNum}"/>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="DisplayBucket">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Sequence}"/>
<TextBlock Text=" "/>
<TextBlock Text="{Binding Description}"/>
<ToggleButton IsChecked="{Binding IsEditable}" Width="25" Style="{StaticResource Editor}"/>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="EditBucket">
<StackPanel Orientation="Horizontal">
<TextBox Text="{Binding Sequence}"/>
<TextBlock Text=" "/>
<TextBox Text="{Binding Description}"/>
<ToggleButton IsChecked="{Binding IsEditable}" Width="25" Style="{StaticResource Editor}"/>
</StackPanel>
</DataTemplate>
<HierarchicalDataTemplate x:Key="TreeTemplate"
DataType="{x:Type domain:Bucket}"
ItemsSource="{Binding Parts}"
ItemTemplate="{StaticResource HierarchialItemTemplate}"
>
<ContentPresenter Content="{Binding}"
Style="{DynamicResource TreeNodeStyle}"/>
</HierarchicalDataTemplate>
<Style TargetType="{x:Type ContentPresenter}" x:Key="TreeNodeStyle">
<Setter Property="ContentTemplate" Value="{StaticResource DisplayBucket}"/>
<Style.Triggers>
<DataTrigger Binding="{Binding IsEditable}" Value="True">
<Setter Property="ContentTemplate" Value="{StaticResource EditBucket}"/>
</DataTrigger>
</Style.Triggers>
</Style>
以上是window.resources。在Grid中
<TreeView x:Name="Buckets"
ItemsSource="{Binding Model.Job.Buckets}"
ItemTemplate="{StaticResource TreeTemplate}"
>
因此,无论出于何种原因,当我添加节点时,我会得到一个带有切换按钮的存储桶,但切换按钮文本仅显示添加的最后一个节点。如果单击切换按钮,文本将从之前的切换按钮中消失,并显示在刚刚单击的按钮中。效果类似于这个人的经历,但我不知道那个人在谈论谁回答了问题ToggleButton Style only works on last ToggleButton。
有什么想法吗?
答案 0 :(得分:1)
您有几种选择(从最少到最具戏剧性排序):
1)内容
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Content" Value="Edit" />
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Content" Value="Done" />
</Trigger>
</Style.Triggers>
</Style>
2)ContentTemplate
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="Edit"/>
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="Done"/>
</DataTemplate>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
3)ControlTemplate
<Style TargetType="{x:Type ToggleButton}" x:Key="Editor">
<Style.Triggers>
<Trigger Property="IsChecked" Value="False">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<TextBlock Text="Edit"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<TextBlock Text="Done"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
您的方法无效的原因是TextBlock控件只创建一次(即不是作为模板的一部分创建的 - ControlTemplate
或DataTemplate
)。